Tech news tagged ‘resistor’

Charcroft offers German-made precision resistors

Powertron’s expanded range of precision foil current sense resistors with five new SHR series devices that are available from Charcroft Electronics.

Offered in a  range of anodised aluminium package sizes, the made-in-Germany SHR 4-8065, SHR 4-80110, SHR 4-80216, SHR 4-80320, and SHR 4…

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Detonators go surface-mount

Vishay has introduced the ‘massive electro-pyrotechnic initiator chip’ (MEPIC)  – a 0805 SMD resistor for what is sometimes known as electronic detonation or digital blasting.

“It has very predictable, reproducible and reliable behaviour and meets USCAR and AKLV16,” said Farnell, which is stocking the device. “MEPIC can be adapted for…

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0603 SMD resistor handls 100mW for current sensing

Rohm has introduced an 0603 resistor for current sensing, intended for smartphones and wearables.

The UCR006 series of 0.6×0.3mm thick-film chip resistors are available from 100mΩ to 910mΩ (E24 steps) and operate across -55 to 155°C – an industry first claims Rohm.

Power handling is 100mW, allowing…

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Built in Britain: Welwyn

Welwyn started making resistors in Bedlington Northumberland in 1946, and it is still making resistors there, in a growing facility, with technology that is in demand worldwide. When Mercedes needed power resistors for its SLS sports car, it specified Welwyn parts. The firm, now part of the UK conglomerate TT…

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Electronics patent of the month: Anti retail-theft RFID antenna and reader

GPS with an accuracy of 2m has been developed by researchers at Carlos III University in Madrid. The researchers added three gyroscopes and three accelerometers to a conventional GPS system to pinpoint the position of cars in cities to within 2m. Unaided GPS has an accuracy of 50m in cities…

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White space transceiver from Cambridge

Neul has announced its first transceiver chip for ‘white space’ communications in 470-790MHz UHF TV bands. Called Iceni, the chip is intended for secure non-line-of-sight machine-to-machine (M2M) communications. Both 6 and 8MHz channel bandwidths are supported, and “adaptive digital modulation schemes and error correction…

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Wideband antenna meets need for new mobile frequencies

CommScope claims to have an antenna which can be used by operators to add spectrum and bandwidth to mobile networks.

The family of ultra-wideband basestation antennas are designed to address the needs of operators for bandwidth growth and additional radio spectrum availability in the future. “This familiy of ultra…

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Secondary standard resistors for test gear

Vishay has introduced secondary standard resistors for laboratory calibration and digital multimeters. “For test equipment designers, the resistors offer accuracy of 10ppm at the terminals, long-term stability of +/-5ppm at 25°C for one year, temperature coefficient to +/-0.3ppm/°C from 15°C to 45°C, and resistance…

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Micro-range wireless adds 375Mbit/s to NFC

A Japanese-led international consortium is developing a 375Mbit/s data transfer standard for ‘touch’ communication with phones and other mobile devices. Dubbed TransferJet, applications are foreseen photo sharing, transferring video, synchronising data, and receiving pre-paid content. Although it is not inherently secure, its range is limited to 3cm…

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UK ‘dangerously reliant’ on GPS sat nav

The UK could be dangerously dependent on satellite radio navigation systems such as GPS, warns the Royal Academy of Engineering. Inadequate independent backup for Global Navigation Satellite Systems (GNSS) could affect safety systems and other critical parts of the economy, according to an RAE report. Global Navigation Satellite Systems (GNSS…

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